The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 29, 2019
Filed:
Jun. 22, 2016
Nec Corporation, Tokyo, JP;
Wakako Yasuda, Tokyo, JP;
Kazunori Hayashi, Kyoto, JP;
NEC CORPORATION, Minato-ku, Tokyo, JP;
Abstract
A transfer function calculation unit () calculates a diagonal matrix G(f) on the basis of a band limit condition g(t) used in a transmission device (). A transfer function calculation unit () calculates a diagonal matrix C(f) on the basis of a wavelength dispersion amount c(t) incurred in an optical transmission path. A transfer function combination unit () combines the diagonal matrix G(f) with the diagonal matrix C(f) so as to calculate a diagonal matrix H(f)=G(f)×C(f). An equalization coefficient calculation unit () calculates an equalization coefficient matrix W(f)=H(f)(H(f)H(f)+(/E)×Φ)used in a multiplication unit () by using the diagonal matrix H(f). Here, H(f)is a Hermitian transposed matrix of a matrix H(f), Eis power of an optical signal, and Φis a diagonal matrix with N rows and N columns.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile